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Engineering, 13.04.2020 08:24 20009
1. explain why preheating the components to be welded is effective in reducing the likelihood of developing cracks
2. make a list of welding processes that are suitable for producing (a) butt joints, where the weld is in the form of a line or line segment, (b) spot welds, and (c) both butt joints and spot welds. Comment on your observations.
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